Inkstand.



F. A. KENNEDY, DECD.

C. M. S. KENNEDY, EXEQUTRIX.

INKSTAND.

APPLICATION FILED DEC.22, I916- 1 ,266,84 Patented May 14, 1918.

4. 1 m 2 9 H 5 H g 1 n W Ipvenior. Freder lck A. Kenndy y WMW Aiiys.

.EnEDE'nIcKA. KENNEDL, or DANIELsoN, CONNECTICUT; CORA M. s. KENNEDY, EXECU- n'rx or sun EEEDEEIcK KENNEDY, DEcEAsED, nssIGNcE no THE GENERAL ECLIPSE COMPANY, A CORPORATION OF CONNECTICUT.

INKSTANID.

To all whom 2'2? may concern Be it known that I, FREDERICK A. KEN- NEDY, a citizen of the United States, and resident of Danielson, county of Windham, State of Connecticut, have invented an Im- .pr'ovement in Inkstands, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in ink stands of the barometric type such as is illustrated and described the patent to James V. Jacobus, No. 879,470, granted Feb. 18, 1908 and which comprises a reservoir, a portion of the wall of which is indented to form a *dip opening.

One of the objects of the present inven- :tion is to provide an improved form of dip chamber in which the area of the ink ex- :posed to the action of the atmosphere will be restricted to a minimum and the exposed portion will be beneath the overhanging dome.

Another object of the invention is to provide an ink well of the type described with a dip chamber so designed-that it will deliver just enough ink to the pen at each dip, and there will be -no superfluous ink to tall from the tip of the pen or reach the pen holder.

Another object of the invention is to pro vide an ink stand of the character described COI-lStIHCfilsBd of vitreous material with a safety chamber having its bottom normally lying above the level of the ink in the dip chamber and extending beneath a rentrant portion of the dome in such a manner as to restrict the area of the exposed surface of the dipxchamber and provide means so that dust falling upon the wall of said safety chamber may readily be removedand .prevented from contaminating the ink.

A further object of the invention is to provide an inkstand of the character above described with walls of substantially equal thickness throughout in order to avoid strains due to inequality of expansion resulting from changes in temperature.

O-ther features or the invention will more ta l-Ly appeartrom the following descrip- Specificatibn of Letters Patent.

Patented May 14, 1918.

flppIica'tion-filed December 22, 1916. Se'rialNo.138,354.

tion and accompanying drawings and will be particularly pointed out in the annexed claims.

In the drawings,

Figure 1 is a vertical sectional view of an ink stand constituting the preferred "embodiment of my invention, and,

Fig. 2 is a sectional "view in the horizontal ill-ashes indicated by the broken line 2*2, vr ig. 1.

The ink stand illustrated in the accompanying drawing desirably is formed of vitreous material, preferably glass, and comprises two complementary parts, a base member having a bottom 1, preferably provided with a downwardly extending circumferential supporting flange 2 and with an upwardly extending vertical wall 3 which desirably may have its inner face 4 slightly tapered and a complementary dome shaped member -'5 having 'a substantially cylindrical downward extension 6, the outer wall of are secured together by a cement composed of lith'arge and glue or any other suitable acid resisting cement. When thus secured together the base and dome members form a reservoir adapted to receive a'considerable body of ink.

The wall of the dome shaped member 5 is provided with a preferably undercut reentra nt portion 7 having a slot or aperture 8 extending u'pward ly a short distance from its bottom to supply ink to the dip chamber which will hereinafter be described.

The base portion is provided with a lateral extension 9 forming with the reentrant portion of the dome a dip chamber 10 and also a communicating safety chamber 11, the walls off the safety chamber prefer-ably extending to the level of the top of the upwardly extending wall 3 of the base portion. The bottom 12 of the safety chamber is located above the level of the bottom of the reservoir and preferably is in the form of' a ledge having a curved upper surface, thei-nner margin of which is substantially level with the upper end of the aperture 8 in the reentrant portion, the ledge having extensions 13 projecting beneath the reentrant portion and conforming to the con tour of the walls thereof.

The bottom of the safety chamber which thus extends within the reentrant portion preferably is cut away opposite to the aperture 8 to form a recess 1& which constitutes an extension of the dip chamber.

The bottom of the dip chamber preferably is provided with a depression or groove 15 extending within the reservoir so that when the pen is introduced it may be immersed a sufficient distance to permit the pen to be filled. By reason however of the restricted area of the surface of the dip chamber no superfluous ink may adhere to the pen so that there will be no ink carried by the pen to drop upon the paper or the desk when it is removed from the ink well.

By reason of this construction the ink from the reservoir will flow through the aperture until it is substantially at the level of the upper end of the aperture 8 so that the surface of ink exposed is merely that within the recess 14: and beneath the reentrant portion of the dome. It will be noted that the dome overhangs the dip chamber so that dust falling from the air will not drop directly upon the exposed surface of the ink. Any dust which may fall upon the bottom of the safety chamber may be wiped away with a cloth or by the finger.

The purpose of the safety chamber is to prevent any overflow which might occur by the arring of the ink stand or by reason of an unusual flow of ink through the aperture 8'if the ink well is exposed to the heat of the sun or which sometimes occurs when the level of the ink in the reservoir becomes low.

When ink stands constructed of vitreous material, such as glass have parts of difierent thickness the unequal expansion of the parts due to variations in temperature often causes strains which fracture the device.

One of the features of the present invention consists in making side walls, dome and bottom of the ink stand of substantially the same thickness so that the strains due to variations in temperature will be substantially equal throughout the device. I

A further feature consists in providing the circumferential means for supporting the ink stand which will separate the bottom of the reservoir from the object upon which the ink stand rests so that there will be no variation in temperature caused by conduction of heat from the object upon which the ink well rests to the bottom of the reservoir. In the preferred embodiment of the invention disclosed herein this supporting means is the circumferential flange 2 heretofore described.

The expansion and contraction therefore of these various parts remains substantially the same throughout usual changes in telnperature and the breakage of the ink well is thereby avoided.

It will be understood that the embodiment of the invention described herein is illustrative merely and that various changes in design and in construction may be 'made within the scope of the following claims.

v Having thus described my invention what I claim as new and desire to secure by Letters Patent is;

1. An ink stand comprising a base and a dome forming a barometric reservoir,"the wall of the dome having a reentrant portion provided with an aperture leading to saidreservoir, the base having an extension opposite said reentrant portion forming a safety chamber, the bottom of said safety chamber being recessed to form a dip chamher and presenting a ledge the inner margin of which lies substantially upon a level with the top of the aperture leading to the reservoir whereby the normal level of the ink in said dip chamber will be substantially upon a level with the inner margin of said ledge and a minimum amount of the surface of the ink exposed to the atmosphere.

2. In an ink well comprising a base and a dome forming a barometric reservoir, the wall of the dome having an undercut reentrant portion provided with an aperture leading to the reservoir, the base having an extension opposite said re'elntrant portion forming a safety chamber, the bottom of said safety chamber presenting a ledge having extensions, the marginal walls of which underlie and conform to the contour of the reentrant portion of the wall of the dome and is substantially upon a level with the top of the aperture leading to the reservoir, said ledge being provided with a restricted recess located opposite to said aperture and beneath the wall of the reentrant portion of the dome to form a restricted dip chamber.

3. An ink stand constructed of vitreous material comprising a base member having a fiat bottom provided with a circumferential downwardly extending supporting 'means adapted to separate said bottom from contact with the object upon which the ink stand rests and an upwardly extending cylindrical wall, a dome shaped member having a cylindrical wall fitting tightly Within the cylindrical wall ofthe base member and adapted to be cemented thereto, the cylindrical wall of said dome member being provided with a reentrantportion having an aperture communicating with the chamber within said dome member, the base portion being provided with a lateral extension forming a safety chamber, the bottom of said safety chamber presenting a ledge the inner margin of which lies substantially upon a level with the top of said aperture, the bottom of the wall of the base member, including the bottom and wall of the safety chamber, being of substantially the same thickness whereby strains in the material due to expansion and contraction resulting from changes in temperature will be substantially equal throughout said base portion and fracture thereby prevented.

4. An ink stand constructed of vitreous material comprising a base member having a fiat bottom provided With a circumferential downwardly extending supporting flange adapted to prevent said bottom from contacting With the object, upon which the ink stand rests and an upwardly extending cylindrical Wall, a dome having a cylindrical a wall fitting tightly Within the cylindrical wall of the base member and adapted to be cemented thereto to form a barometric reservoir for the ink, the dome member being provided with an undercut rentrant portion having an aperture communicating with said reservoir, the base portion being provided with a lateral extension forming a safety chamber, the bottom of which forms a ledge having its inner margin substantially upon a level With the top of the said aperture, a recess in said ledge and a depression in said bottom beneath said aperture forming a dip chamber, the bottom Wall of the base member including the bottom and Wall of the extension and the Wall of the de pressed portion of the bottom forming the dip chamber being substantially of the same thickness whereby strains in the material due to the expansion and contraction resulting from changes in temperature Will be substantially equal throughout said base portion and fracture thereby prevented.

In testimony whereof, I have signed my name to this specification.

FREDERICK A. KENNEDY.

Copies of this patent may be obtained for the cents each, by addressing the "Commissioner of Patents, Washington, I). (2." 

